Home / 20,339.24-28,075.98-19,777.43

Finding the Fourth Proportional to 20,339.24, 28,075.98 and 19,777.43

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Solution

The fourth proportional to 20,339.24, 28,075.98 and 19,777.43 is: 27,300.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,339.24 : 28,075.98 = 19,777.43 : x
  2. Step 2: Convert to fraction form
    20,339.24/28,075.98 = 19,777.43/x
  3. Step 3: Cross multiply
    20,339.24x = 28,075.98 × 19,777.43
  4. Step 4: Simplify right side
    20,339.24x = 555,270,873.49
  5. Step 5: Solve for x
    x = 555,270,873.49/20,339.24
  6. Step 6: Final answer
    x = 27,300.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.